Products Description
Sand-Resistant Flexible Graphite Sheet
Flexible graphite products include sheets, foils, papers, tapes, and strips. These materials are produced by chemically intercalating natural graphite flakes followed by high-temperature exfoliation, creating vermicular structures with ~0.003g/cm³ density. The binder-free expanded graphite is calendared into rolls, offering:
- 99%+ purity
- Chemical inertness
- Radiation resistance
- Thermal stability (-200°C to +650°C)
- Compression recovery
- Self-lubricating properties
- Gas-tight sealing
- Enhanced abrasion resistance through surface treatment
Ideal for harsh environments, these sheets feature specialized coatings to resist sand erosion while maintaining sealing performance. Composite options with metal reinforcements are available.
Specialized Applications:
- Packing rings for desert machinery
- Sealing gaskets for dusty industrial equipment
- High-temperature insulation in abrasive conditions
- Composite seals for pumps/valves in sandy environments
Standard & Custom Specifications:
- Roll Width: 1000mm / 1500mm (custom up to 2000mm)
- Coil Length: 30m / 50m / 80m (cut-to-length service)
- Sheet Size: 1000x1000mm / 1500x1500mm
- Thickness Range: 0.15-5.0mm
- Density: 0.8-1.25g/cm³
- Surface Treatments: Anti-abrasion coatings available
Item | Standard Value |
C concentration | 99% |
S concentration | <1000ppm |
chlorine concentration | <45ppm |
tensile strength | 4.5MPa |
compressibility | >40% |
recovery | >10% |
Temperature | -200ºC-600ºC |
Pressure | 20MPa |
Terence of Thickness | -0.04mm~+0.04mm |
Terence of Dimension | In accordance with your Gasket size |
Terence of Density | -0.06~g/cm3+0.06gcm3 |
Grades Separate :JB/T53392-1999 Mechanical Data | Qualified product | Top Grade | Superior Grade |
Density Tolerance g/cm3 | <0.4 | ±0.10 | ±0.05 |
≥0.4 | ±0.07 |
Tensile Strength MPa | ≥3.2 | ≥4.5 | ≥5.0 |
Compression Ratio % | 35~55 |
Rebound Rate % | ≥9 | ≥11 | ≥12 |
Stress relaxation rate % | ≤10 |
Ash % | ≤6.0 | ≤3.0 | ≤1.0 |
Heat loss on ignation % | 450ºC | ≤1.0 | ≤0.5 |
600ºC | ≤20 | ≤15 |
Sulphur content | ≤1500ppm | ≤1000ppm | ≤600ppm |
Chloride content | ≤100ppm | ≤50ppm | ≤20ppm |
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